Valve-controlling mechanism for explosive-engines.



,043. PATENTED FEB. 20, 1906.

D. F. GRAHAM & F. A. FOX.

VALVE OONTROLLING MECHANISM FOR E APPLICATION FILED MAR.11

XPLOSIVE ENGINES. ,1903.

2 SHEETS-SHEET 1.

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PATENTED FEB. 20, 1906. 1 X.

D. I. GRAHAM & F. A. F0

VALVE CONTROLLING MECHANISM FOR E XPLOSIVE ENGINES. ,1903.

APPLICATION FILED MAR. 11

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UNITED STATES PA TE T OFFICE.

D'AVID F. GRAHAM AND FRANK AQ OX, F STAMFORD, CONNECTICUT, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THEEISENHUTH HORSE- LESS VEHICTIE COMPANY, or IDDLET WN, CONNECTICUT, A COR PORATION OF MAINE.

- VALVE-CONTROLLING MECHANISM'FOR EXPLOSIVE-ENGINE'S.

Specification of Letters Patent.

Patented Felo. 20, 1906.

To all whom it may concern:

Be it known that we, (DAVID F. GRAHAM and FRANK A. Fox, citizens of the United -States, residin at Stamford, in the county of Fairfield and tate of Connecticut, have invented certain new and useful Improvements in Valve-Controlling Mechanism for Explosive-Engines, of which the following is a speci:

ficationb This invention relates to inlet-valve-con trollingmechanismforexplosive-engines; and

'its primary object is to provide improved means for ins the uniform'action of all the inlet valves etween the cylinder and va o'r-pipe of the en 'ine.

' furt er object of the invention is to provide effective means for closingall of the inlet-valves simultaneously when the engine is throttled.

Still further objects of the invention are to so project and expose to view the stem of the inlet-valve that the operation of the valve may be readily observed and any stickingl or inaccuracy of itsmovement easily reme 'ed and to so construct the valveseat and valvestem as to renderthese parts removable and easy of access for renewal or repairs.

- 'The construction of ,the improvement will be fully-described hereinafter in connection with the accompanying drawings, which form part of the specification, and its novel and characteristic features will be particularly set forth, and defined in the appended claims;

In thedrawings', Figure 1 is a horizontal section, partly in plan, of thevaporzpipe of an explosive-engine with our improve valves and controlling mechanism applied thereto and Fig. 2 is a sectional elevation of the same.

,- face with an'annular recess 6.

7 designates valve-seats, each formed at its upper end with-an annular flange 8, fitting the recess 6'of the union and beveled at its lower end to conform to the contour of the inlet-valve 9, having a stem 10 extending through a centering-guid.e l1, supported b radial arms 12. The guide 11 idcircflhafer'en- Q tially reduced at its under ortionto provide a shoulder 13 to 'suppo'jt A 'e lower end of a, coil-spring 1Q theupp'eiif end of which bears;

against a washer '15 mounted upon the valve-i 6o stem and secured bya key 16 above the washer. 5, 4 I

The Jupperl'surface of the vapor pipe is formed a'd'acent to each end :with an internally-threaded passage 17 in vertical alinement with'the guide II, and within said pas sage is fitted a threaded bushing '18, through which they valve stemgextends. The'bushing 18"projects above"the vapor-pipe and is formed with a thread corresponding to the internal thread. on' the hub 19 of a throttlewheel 20, formed with a eripheral groove 21,. to receive an endless cable-22, as will be hereinafter referred to. Above each of the throttlerwheels is an intern'ally-threaded cap 23, fitting an externally' threaded boss 24 projecting fromth'e throttle-wheel, and upon the upper. end of ea'ehvalve-stem is fitted a stopnut 25, which limits the downward movement of the valve stern striki'ng against the 3o 02112323; J l p ach of the valve seats 7 is formed'with an external annular; shoulder 26, adapted to bear against a shoulder within the cylinder I cates, and the'union 4 is firmly clamped openmg, wlth'yvhich the valve-seat communiagainst the valve-seatby means of a nut 27,

fitting a threaded openinginthe outerendof w The operation 'of" the Lvalve controlling mechanism constructed as above describedwill be readily understood by those skilled in the art to which this invention relates.

The partial vacuum created within the cyl 5 also, the valve-stems and valves, through the the valve-opening inthe cylindeiyas indicated at the right hand sidecofdlig. 2.

- ative arrangement of parts asmay intermediacy of the threaded connection beautomobile it is located on any convenient part of the vehicle where it can be manipulated by the operator. It will be apparent that the improvement affords ready means for removing the valveseats and otherparts for repairs or renewal and that a uniform simultaneous movement of the valves is insured. I

An important feature of the improved construction is the projection of the valve-stems beyond the vapor-pipe. This arrangement exposes the valve-stems to view, so that any irregularity in the operation of the valvesmay be readily observed and :corrected. ,Again,

the upward movement. of the valve-stems is efiected positively by means of the screw conbushings, and said throttle-wheels are accu= rately centered with the valve-stemsby the bushings employed. v 1 v While the throttle-wheelsare operated in unison, either of them may be adjusted independently of the other. I

We wouldhave it understood that the inven tion is not restricted -to all ofthe details shown and described, and we therefore reserve the right to make all such variations and modifications in the construction and relfallw'ithin the purview of the following claims.

Having thus described our invention, we claim and desire to secure by Letters-Batent- 1. In a controlling device for inlet-valves.

of explosiveengines, the combination with a vapor-pipe having a plurality of inlet-open-- lugs and valve-seats for said inlet-openings,

of inlet-valves for controlling said opemngs,v

vapor-pipe having a plurality of inlet-openings and valve-seats for said inleteopen ngs,

of inlet-valves for controlling said openings,

or inlet-valves of explosive-engines, the combination with a throttle-wheels, a connection between said throttlewheels for causing them tooperate in unison, and adjustable connections between said throttle-wheels and valve-stems for adjusting'said throttle-wheels to limitthe withdrawal of the valves from the seats of said openings. V

, 3. In a controlling device for inlet-valves of explosive-engines,- the combination with a vapor-pipehavmg a lurality of inlet-openings and valve-seats or said inlet-openings, of inlet-valves for controlling said openings, throttle-wheels, an endless cable connecting said throttle-wheels for causing them to operate in unison, connections between said throttle-wheels. and valve-stems for adjusting said throttle-wheels to limit' the withdrawal of the valvesfi'om the seats of said openin substantially as described.

an explosive-engine, of a union-coupling secured'to the end of said ,pipe and provided with an annularfiange'havmg an annular renection between the throttle-wheels and icess iniits'under side, a valve-seat providedwith an'.ann11lar flange having an' annular projection engaging said recess, a cylinder provided 'h-an annular shoulder toreceive the flange of the valve-seat and an upwardlyelrtendihg annular flange having interior threads, a'valve for said seat, andaclam ing nut orring arranged to bear down on t e flanggof the valve-seat to the cylinder thereb hol g the valve-seat-in place. A

tion with a vapor-pipe, and a -pluralit of valve-seats and valves for said seats, 0 externally-threaded bushings mounted-in said pipe, stems connected tosaid valves and. mounted to slide in said bushings and pro-' vided above said bushings with stops to limit their downward movement, throttle-wheels mounted to screwon said bushings and adapted to be raised'or lowered-thereon and to be engaged by said stops, and .means for turning said wheels in unison,-as set forth.

In testimony whereof we have si ed our names in the presence of. the subscri ing "wit FRANK A. FOX.

Witnesses;

F. O. MCCLEARY, J. CLAmr RYBAs.

DAvID F. GRAHAM. A

4. T e combination with the vapor-pipe of I ,flange-of said coupling and clamp it and the 5. In an explosive-engme, the combina- 

